My 89 Subaru gl is lugging out at higher speeds like its not getting fuel, fuel filter/fuel pump? main seal is bad so is that an issue?
Maybe you should consider getting a newer vehicle. I remember my imports auto mechanic becoming irritated by customers who have a hard time parting with their older vehicals. The damn things wear out!
The seal could be the main issue because it could be interfering with the flow of fuel. You should replace the seal with a new one to make sure that your car functions normally.